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SCIENCE ASSESSTMENT2

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

(a)   is the technique of separating insoluble solid from liquid.

2.

After passing the filter paper, the water inside the bottle or can is called (a)  

3.

Solids that dissolve in water are called (a)  

4.

(a)   is the technique of separating homogeneous mixture which is done through the heating of the mixture until no more water is left.

5.

The solid particles that is left on the filter paper after filtration is called (a)  

6.

____1. Colloids are ____________________

a)

A. homogeneous mixtures that seem to be heterogeneous

b)

B. heterogeneous mixture that seem to be homogeneous

c)

C. suspensions that look like solutions

d)

D. solutions that look like colloids

7.

Oil and water are immiscible but, when mixed using a high-speed mixer they will form a/an ________________.

a)

solution

b)

suspension

c)

emulsion

d)

foam

8.

Foams are used in mattresses, shoe lining, and for protecting delicate materials in boxes during transport. Foams are what kinds of colloids?

a)

Liquid dispersed in solid

b)

Gas dispersed in liquid

c)

gas dispersed in solid

d)

liquid dispersed in gas

9.

Cloud and fog are what kinds of colloids?

a)

liquid dispersed in solid

b)

gas dispersed in liquid

c)

as dispersed in solid

d)

liquid dispersed in gas

10.

Why does sugar disappear when mixed with water?

a)

The particles of sugar are absorbed by the water.

b)

The sugar settles at the bottom.

c)

The sugar particles spread evenly in water.

d)

The particles of sugar become colorless and tasteless.